Dan Reiland, in his book Shoulder to Shoulder has this to say about church commitment...

Commitment is a fragile thing....When the Padres do well, the fans show up; when the Padres don't do so well, the stadium is nearly empty.  Sometimes as I look at church attendance in sanctuaries I wonder if something similar is going on.  People will call in and ask what the sermon title is to make a decision whether or not they will attend church that morning.  Some folks sleep in because they were out late the night before.  Church members sometimes withhold their tithe to demonstrate that they are unhappy with something.  
How committed to your church are you?  Your church needs you to help it become better.  Commitment is necessary for your own spiritual growth as well as the growth of your church.  Your pastor needs your commitment and support in order to fulfill the Great Comission of Matthew 28 - to go and make disciples.     - Shoulder to Shoulder, p. 53

AN EXERCISE:  Make two lists.  On the first, list activities, in order of priority from top to bottom that  you never miss, that you'd get up early for and stay up late for (work and school would be on this list).  On the second list write down those activities you would participate in depending on your mood, how you feel or if other opportunities didn't present themselves (going to a movie, dinner, etc.).  

NOW BE HONEST (no one is watching:) Which list is church on?   How high or low is it on the list? If the church is the body of Christ, what does this reveal about your commitment to Christ? Have you fallen out of love with Jesus?  Ask God to forgive you, He will (1 John 1:9).  Repent and return to the right priority of Christ first in everything (Revelation 2:4-5)